Fetal arrhythmia is an abnormality of the fetal heart rate. Most fetal arrhythmias are due to irregular beats. Arrhythmias can involve a fast or slow heart rate.
Arrhythmias are rare pregnancy complications, with the large majority of cases being benign.
Fetal echocardiography and prenatal consultation with a pediatric cardiologist are recommended in the evaluation of fetal arrhythmias. Serial echocardiography may be recommended to monitor this condition. In more severe cases, prenatal care will be managed by a Maternal-Fetal Medicine specialist, an obstetrician with special training and expertise in high-risk pregnancies.
Newborns will be evaluated and cared for by a team involving pediatric cardiology and neonatology specialists. Outcomes vary widely based upon the underlying arrhythmia and are influenced by the presence of other abnormalities or genetic syndromes.